Tag: Filter

This is true subwoofer circuit. This circuit is used for 15- to 18-inch woofers and will not work with  8- or 6- inch “subwoofers.” It has bass-reflex, a good infinite-baffle, or foldedhorn enclosure, and driven by driven by an amplifier with at least 100 watts. This circuit will most useful for home theater applications, which play material that does have […]

The audio spectrum range of human speech is most frequently on 300 Hz to 3 kHz. In phone, this range should be limited. Usually, DSP chip is used to perform this limitation but to reject high-frequency components, it requires an anti-aliasing filter. We can solve this problem by using a single-supply phone speech filter circuit. Here is the circuit : […]